🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.4

Radius: 11.5

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.55 AU - 0.57 AU

Year: 289 Days

Day: 11.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,020,872 km

• M1: 143,165 km (0.032 R)
• M2: 622,327 km (0.093 R)
• M3: 1,126,921 km (0.087 R)
• M4: 1,535,323 km (0.083 R)
• M5: 1,899,893 km (0.103 R)
• M6: 2,330,884 km (0.049 R)
• M7: 2,756,939 km (0.085 R)
• M8: 3,186,734 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.1

Radius: 11.4

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.6 AU - 0.72 AU

Year: 370 Days

Day: 9.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,020,872 km

• M1: 141,819 km (0.096 R)
• M2: 555,457 km (0.112 R)
• M3: 999,763 km (0.044 R)
• M4: 1,435,840 km (0.107 R)
• M5: 2,120,699 km (0.053 R)
• M6: 2,516,984 km (0.077 R)
• M7: 3,195,261 km (0.105 R)
• M8: 3,572,547 km (0.101 R)
• M9: 4,163,458 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.4

Radius: 14.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.68 AU - 0.78 AU

Year: 431 Days

Day: 12.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 87,020,872 km

• M1: 184,005 km (0.11 R)
• M2: 739,313 km (0.039 R)
• M3: 1,249,441 km (0.055 R)
• M4: 1,716,935 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430

Radius: 11.1

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.24 AU - 1.44 AU

Year: 1071 Days

Day: 12 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,020,872 km

• M1: 139,126 km (0.07 R)
• M2: 496,366 km (0.077 R)
• M3: 909,256 km (0.075 R)
• M4: 1,581,549 km (0.114 R)
• M5: 2,010,296 km (0.099 R)
• M6: 2,758,884 km (0.086 R)
• M7: 3,291,752 km (0.089 R)
• M8: 4,061,283 km (0.096 R)
• M9: 4,666,855 km (0.104 R)
• M10: 5,350,517 km (0.105 R)
• M11: 5,697,136 km (0.112 R)
• M12: 7,053,091 km (0.066 R)
• M13: 7,637,570 km (0.094 R)
• M14: 8,613,397 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.6

Radius: 13.8

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.13 AU - 4.75 AU

Year: 5398 Days

Day: 5.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,020,872 km

• M1: 172,337 km (0.089 R)
• M2: 984,204 km (0.097 R)
• M3: 1,612,366 km (0.108 R)
• M4: 2,747,215 km (0.118 R)
• M5: 3,207,528 km (0.105 R)
• M6: 4,436,923 km (0.034 R)
• M7: 6,212,650 km (0.108 R)
• M8: 7,367,994 km (0.101 R)
• M9: 9,491,237 km (0.085 R)
• M10: 12,298,740 km (0.113 R)
• M11: 13,185,706 km (0.032 R)
• M12: 13,617,745 km (0.079 R)
• M13: 14,170,957 km (0.071 R)
• M14: 15,204,679 km (0.078 R)
• M15: 16,043,025 km (0.109 R)
• M16: 16,785,928 km (0.112 R)
• M17: 17,877,394 km (0.06 R)
• M18: 20,416,369 km (0.111 R)
• M19: 21,511,127 km (0.079 R)
• M20: 23,031,191 km (0.062 R)
• M21: 25,360,878 km (0.113 R)
• M22: 28,466,680 km (0.074 R)
• M23: 29,189,836 km (0.045 R)
• M24: 30,297,608 km (0.115 R)
• M25: 31,625,139 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.5

Radius: 3.3

Gravity: 20.16 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.2 AU - 10.4 AU

Year: 18019 Days

Day: 23.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,020,872 km

• M1: 62,382 km (0.12 R)
• M2: 171,439 km (0.109 R)
• M3: 639,232 km (0.029 R)
• M4: 799,301 km (0.115 R)
• M5: 1,364,482 km (0.094 R)
• M6: 1,472,791 km (0.051 R)
• M7: 2,559,470 km (0.114 R)
• M8: 6,143,685 km (0.078 R)
• M9: 8,609,357 km (0.038 R)
• M10: 11,110,484 km (0.055 R)
• M11: 11,384,548 km (0.095 R)
• M12: 16,192,174 km (0.028 R)
• M13: 18,458,133 km (0.089 R)
• M14: 22,369,370 km (0.089 R)
• M15: 27,990,510 km (0.096 R)
• M16: 29,217,511 km (0.057 R)
• M17: 29,321,332 km (0.109 R)
• M18: 30,908,416 km (0.118 R)
• M19: 31,997,788 km (0.062 R)
• M20: 40,865,501 km (0.094 R)
• M21: 42,976,775 km (0.102 R)
• M22: 44,332,431 km (0.092 R)
• M23: 45,437,361 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 960.3

Radius: 7.5

Gravity: 17.07 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.47 AU - 9.81 AU

Year: 20660 Days

Day: 23.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 87,020,872 km

• M1: 288,724 km (0.113 R)
• M2: 559,197 km (0.055 R)
• M3: 1,621,043 km (0.101 R)
• M4: 1,981,125 km (0.052 R)
• M5: 3,390,636 km (0.065 R)
• M6: 10,959,241 km (0.113 R)
• M7: 11,421,947 km (0.106 R)
• M8: 13,404,568 km (0.11 R)
• M9: 16,792,062 km (0.078 R)
• M10: 17,675,437 km (0.114 R)
• M11: 18,496,580 km (0.028 R)
• M12: 19,630,681 km (0.104 R)
• M13: 20,610,697 km (0.057 R)
• M14: 21,932,993 km (0.041 R)
• M15: 24,520,886 km (0.072 R)
• M16: 28,033,444 km (0.067 R)
• M17: 30,165,663 km (0.096 R)
• M18: 31,867,488 km (0.092 R)
• M19: 32,269,158 km (0.084 R)
• M20: 39,624,138 km (0.059 R)
• M21: 51,799,908 km (0.076 R)
• M22: 54,807,424 km (0.101 R)
• M23: 69,563,907 km (0.082 R)
• M24: 75,568,168 km (0.118 R)
• M25: 78,695,960 km (0.038 R)
• M26: 83,928,893 km (0.18 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 15,446 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit